/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.iec.edp.caf.commons.spi.utils;

import io.iec.edp.caf.commons.entity.CAFContextInfo;
import io.iec.edp.caf.commons.spi.CAFContextResolver;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ServiceLoader;

public class CAFContextResolverUtils {

    private static List<CAFContextResolver> contextResolverList = new ArrayList<>();

    static {
        ServiceLoader<CAFContextResolver> contextServices = ServiceLoader.load(CAFContextResolver.class);
        Iterator<CAFContextResolver> iterator = contextServices.iterator();
        while (iterator.hasNext()) {
            CAFContextResolver service = iterator.next();
            contextResolverList.add(service);
        }
    }

    public  static CAFContextInfo getCAFContextInfo(){
        CAFContextInfo contextInfo=null;
        if(contextResolverList !=null&& contextResolverList.size()>0){
            contextInfo= contextResolverList.get(0).getCAFContextInfo();//默认只有1个扩展
        }
        return contextInfo;
    }
}
